Tagged: Carbon dioxide

What the world was like the last time carbon dioxide levels were at 400ppm - Climate: Explained

Guest Author Jul 08, 2020

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz What was the climate and sea level like at times in Earth’s history when carbon dioxide in the … Read More

What caused major climate change in the past? - Climate: Explained

Guest Author May 13, 2020

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz Earth had several periods of high carbon dioxide levels in the atmosphere and high temperatures over the last … Read More

Why higher carbon dioxide levels aren’t good news, even if some plants grow faster - Climate: Explained

Guest Author Apr 30, 2020

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz If carbon dioxide levels were to double, how much increase in plant growth would this cause? How much of … Read More

How growth in population and consumption drives planetary change - Climate: Explained

Guest Author Nov 13, 2019

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz The growth of the human population over the last 70 years has exploded from 2 billion to nearly … Read More

Why Mars is cold despite an atmosphere of mostly carbon dioxide - Climate: Explained

Guest Author Nov 06, 2019

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz If tiny concentrations of carbon dioxide can hold enough heat to create a global warming impact on Earth, … Read More

Why carbon dioxide has such outsized influence on Earth’s climate - Climate: Explained

Guest Author Sep 16, 2019

Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz I heard that carbon dioxide makes up 0.04% of the world’s atmosphere. Not 0.4% or 4%, but 0.04%! … Read More

Why plants don’t simply grow faster with more carbon dioxide in air - Climate: Explained

Guest Author Aug 16, 2019

Climate: Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like an expert to answer, please send it to climate.change@stuff.co.nz Carbon dioxide is a fertiliser for plants, so if its concentration increases in the atmosphere then plants will grow … Read More

40 years ago, scientists predicted climate change. And hey, they were right - Guest Work

Guest Author Jul 23, 2019

Neville Nicholls, Monash University This month the world has been celebrating the 50th anniversary of Neil Armstrong setting foot on the Moon. But this week sees another scientific anniversary, perhaps just as important for the future of civilisation. Forty years ago, a group of climate scientists sat down at Woods Hole Oceanographic Institution in Massachusetts for the first … Read More

Ocean acidification may have unexpected impacts - BioBlog

Alison Campbell Jan 20, 2019

A substantial proportion of the CO2 we release into the atmosphere, via burning fossil fuels, ends up dissolved in the ocean. The impact of this is a change in the ocean’s acidity: the pH drops. According to the Smithsonian, oceans have become substantially more acidic over the last 200 years (the period of the Industrial Revolution) – waaaay … Read More